摘要：本申请提供一种用于生成商品主图背景的方法及计算设备。该方法包括：向用户提供行业化的背景信息选项，所述背景信息选项包括行业类目及与所述行业类目关联的主题类型及关键元素；接收用户提交的商品图、背景信息及自定义描述；根据所述背景信息及所述自定义描述生成提示文；从所述商品图提取商品主图；将所述商品主图和所述提示文输入预训练的图文生图模型，所述图文生图模型基于所述提示文从所述商品主图向外扩散出背景图。根据本申请的技术方案可实现商品主图个性化行业化场景创意定制，有助于提升买家采购决策。

摘要：【中文】本发明提供一种基于改进MD5加密算法的用户密码加密方法，涉及信息安全技术领域。该方法首先通过MD5算法对用户注册时输入的密码进行加密，得到初始加密数据，然后通过椭圆曲线产生随机数后送入伪随机数产生器，由椭圆曲线和伪随机数产生器共同生成随机字符串，与MD5算法产生的加密数据按位异或后生成新的加密数据作为报文摘要存储到数据库。当用户再次登录时将输入的密码进行加密，并将加密后的密文与数据库中存储的密文进行对比验证。本发明方法基于改进MD5加密算法，在原始MD5算法运行后增加随机字符串进行异或运算，增加了算法的随机性和抗碰撞性，提升了算法的安全性，能有效抵抗穷举攻击、生日攻击和差分攻击。 【EN】The invention provides a user password encryption method based on an improved MD5 encryption algorithm, and relates to the technical field of information security. Firstly, encrypting a password input during user registration through an MD5 algorithm to obtain initial encrypted data, then generating a random number through an elliptic curve, sending the random number into a pseudo-random number generator, generating a random character string by the elliptic curve and the pseudo-random number generator together, and generating new encrypted data as a message digest to be stored in a database after bitwise XOR with the encrypted data generated by the MD5 algorithm. And when the user logs in again, encrypting the input password, and comparing and verifying the encrypted ciphertext with the ciphertext stored in the database. The method is based on the improved MD5 encryption algorithm, and random character strings are added for XOR operation after the original MD5 algorithm is operated, so that the randomness and the collision resistance of the algorithm are improved, the safety of the algorithm is improved, and exhaustion attack, birthday attack and differential attack can be effectively resisted.

摘要：【中文】本申请公开了一种教学进度提醒方法及装置，属于终端技术领域。在本申请中，终端可以获取当前课堂的课堂教学信息集合，课堂教学信息集合包括多个教学时段和多个教学时段中每个教学时段对应的教学标识，终端还可以获取到当前时刻为止的已教学时长，之后，可以根据多个教学时段、每个教学时段对应的教学标识和已教学时长，显示教学进度提醒信息。由于多个教学时段是根据教学内容对当前课堂的总时长进行划分得到的，因此，显示的教学进度提醒信息可以提醒教师在教学内容中当前的教学进度。避免了教师在教学时忽略了教学时间的长短而导致教学进度滞后的问题，进而使得在这一堂课的时间内可以完成全部教学内容的教学。 【EN】The application discloses a teaching progress reminding method and device, and belongs to the technical field of terminals. In the application, the terminal can acquire the classroom teaching information set of the current classroom, the classroom teaching information set comprises a plurality of teaching time periods and teaching marks corresponding to each teaching time period in the plurality of teaching time periods, the terminal can also acquire the teaching duration up to the current moment, and then the teaching progress reminding information can be displayed according to the teaching marks corresponding to the teaching time periods and the teaching duration. The plurality of teaching time periods are obtained by dividing the total time of the current classroom according to the teaching content, so the displayed teaching progress reminding information can remind a teacher of the current teaching progress in the teaching content. The problem that the teaching progress is delayed due to the fact that the teacher ignores the teaching time during teaching is avoided, and therefore teaching of all teaching contents can be completed within the class time.

摘要：【中文】本公开是关于一种答题处理方法、装置、终端和存储介质，属于电子技术领域。所述方法包括：显示当前的题目信息，并开始进行计时；如果检测到计时时长超过第一预设时长阈值且未检测到答案输入操作，则显示当前的题目信息对应的答案提示信息；获取输入的当前的题目信息对应的答案，对输入的答案进行验证处理。采用本公开，可以避免直接将正确答案直接进行显示，用户在直接看过正确答案之后可能还会遗忘掉当前的题目信息相关的知识内容，而用户在看过答案提示信息之后，可以经过一定的思考，思考出当前的题目信息对应的答案。通过本公开实施例提供的方法，可以提高学习效率。 【EN】The disclosure relates to a question answering processing method, a question answering processing device, a question answering terminal and a storage medium, and belongs to the technical field of electronics. The method comprises the following steps: displaying the current title information and starting timing; if the timing duration is detected to exceed a first preset duration threshold and no answer input operation is detected, displaying answer prompt information corresponding to the current question information; and acquiring an answer corresponding to the input current question information, and verifying the input answer. By adopting the method and the device, the correct answer can be prevented from being directly displayed, the knowledge content related to the current question information can be forgotten after the user directly watches the correct answer, and the user can think the answer corresponding to the current question information through a certain thinking after watching the answer prompt information. Through the method provided by the embodiment of the disclosure, the learning efficiency can be improved.

摘要：本发明涉及锗回收提取技术领域，具体公开一种经两段还原挥发富集低品位锗精矿中锗的设备及方法，包括顺序连接的氮气供气设备、旋转式挥发炉、竖式还原炉和布袋收尘器，所述竖式还原炉还连接有氢气供气装置和盐酸处理池，将低品位锗精矿粉碎后加入还原剂，混合均匀，然后放入旋转式挥发炉中，将旋转式挥发炉，先进行氧化焙烧挥发以除去低温下易挥发物质，然后将旋转式挥发炉升温，进行锗的第一段还原挥发，挥发后的锗进入竖式还原炉，通入氢气还原后，得到含锗固体颗粒，在加入盐酸进行反应后分离得到锗金属，采用两段富集锗工艺，提高了锗精矿二次富集的富集倍数和锗精矿的品位，解决了后工序氯化提锗回收率下降、成本高、环境影响大等问题。

摘要：本发明涉及锗提取技术领域，具体公开了一种从烟尘中提取锗的方法，包括以下步骤：取旋转式挥发炉中产生的含锗烟尘，然后加入压力釜中悬空放置进行氧压氧化，通入CCl4溶液进入压力釜进行反应，并收集挥发的气体，进行冷却，将冷却后的GeCl4溶液通氯气进行氯化蒸馏提纯，然后水解过滤收集GeO2，将废液进行加热收起逸散气体在冰盐水中冷却，回收残余的CCl4循环再利用，将GeO2进行氢气还原后得到锗金属，本方法采用在高温压力氯化的情况下进行气态反应，反应回收效率高，反应速度快，避免了传统工艺反应时间过长的问题。

摘要：【中文】本发明公开了一种指导玻纤格栅制备的方法，利用有限元软件，对于玻纤格栅的原材料和编织方法进行优化，从而指导玻纤格栅制备的方法。具体为建立纤维束和玻纤格栅层多尺度模型，考虑材料组成对纤维束工程常数的影响，以及纤维束编织方法对玻纤格栅层工程常数的影响；然后建立加铺不同玻纤格栅路面结构的有限元模型，预估其反射裂缝寿命；最后，通过对比计算结果，对玻纤格栅的制备进行指导。本发明可以通过数值分析的方法对玻纤格栅的防反效果进行预估，从而在保证足够防止反射裂缝能力的前提下，减小玻纤格栅的制备成本。 【EN】The invention discloses a method for guiding the preparation of a glass fiber grating, which utilizes finite element software to optimize raw materials and a weaving method of the glass fiber grating so as to guide the preparation of the glass fiber grating. Specifically, a multi-scale model of a fiber bundle and a glass fiber grating layer is established, and the influence of material composition on the engineering constant of the fiber bundle and the influence of a fiber bundle weaving method on the engineering constant of the glass fiber grating layer are considered; then establishing a finite element model for additionally paving different glass fiber grating pavement structures, and estimating the service life of a reflection crack; and finally, guiding the preparation of the glass fiber grating by comparing the calculation results. The invention can pre-estimate the anti-reflection effect of the glass fiber grating by a numerical analysis method, thereby reducing the preparation cost of the glass fiber grating on the premise of ensuring the capability of preventing reflection cracks sufficiently.

摘要：本发明提出一种基于数字孪生的板件焊接质量实时监控方法，首先，通过焊装夹具将板件送入自动检测平台，基于深度学习算法实现焊缝缺陷识别分类，将板件信息和焊缝缺陷信息、焊接机器人仿真模型信息分别导入数字孪生系统中的缺陷信息库与模型库中；其次，通过模式匹配方法、特征提取分类、数据库技术等对焊缝精准定位识别分类和焊接参数调整，实现焊接质量诊断与控制；最后，根据系统语音视频模块给出的调整方案，通过VR设备使用人机交互功能对产线焊接机器人做在线参数调整，实现智能焊接。本发明运用的基于数字孪生的板件焊接质量实时监控方法能直观、全面地反映焊接过程全生命周期状态实现高效焊接质量监控，大大减少残次品，提高产线生产效率。

摘要：【中文】一种真空条件下高精度接触热阻测量装置，涉及接触热阻测试技术领域，它包括真空腔、左移动板(9)、弹簧(12)、导向杆(15)、左侧温度控制块(10)、右侧温度控制块(29)、第一被测件(13)、第二被测件(31)、被测件支撑架(16)、右固定板(17)和右移动板(20)。本发明解决了现阶段接触热阻实验装置中应力加载/卸载不连续、热流方向单一、测试误差源种类多等造成的测试结果误差大的问题。本发明通过伺服电机带动丝杠旋转，进而带动弹簧拉伸/压缩，进行应力加载/卸载，并通过压力传感器保证应力加载/卸载的准确性；在真空环境下进行测试，克服了对流换热对测试结果的影响。本发明适用于对接触热阻进行检测。 【EN】The utility model provides a high accuracy thermal contact resistance measuring device under vacuum condition, relates to thermal contact resistance test technical field, and it includes vacuum cavity, left side movable plate (9), spring (12), guide bar (15), left side temperature control block (10), right side temperature control block (29), first measured piece (13), second measured piece (31), measured piece support frame (16), right fixed plate (17) and right movable plate (20). The invention solves the problem of large error of test results caused by discontinuous stress loading/unloading, single heat flow direction, various test error sources and the like in the existing thermal contact resistance experimental device. The servo motor drives the lead screw to rotate, so that the spring is driven to stretch/compress to carry out stress loading/unloading, and the accuracy of the stress loading/unloading is ensured through the pressure sensor; the test is carried out in a vacuum environment, and the influence of convective heat transfer on the test result is overcome. The invention is suitable for detecting the contact thermal resistance.

摘要：本发明公开了一种可变径支点指向式旋转导向系统及方法，系统包括旋转导向系统及扶正器，所述扶正器包括壳体、若干抵靠板及推动机构，所述壳体的一端与所述旋转导向系统的另一端连接，所述壳体的外侧壁上沿周向均匀开设有若干容纳槽，各个所述抵靠板均滑动设置于所述容纳槽内。本发明提供的可变径支点指向式旋转导向系统在需要改变轨道方向时，通过推动机构使抵靠板抵紧钻孔内侧壁形成支点，再伸出翼肋利用杠杆效应放大转向力，从而改变钻头的钻进方向。这种方法提高了钻头推力的传递效率，相比传统的导向方法，能够提高钻进效率，降低钻探成本和时间，为油气资源的开采提供了更有效的技术手段。